Lars Persson 4b34cdde90 MIPS: Remove race window in page fault handling ... Multicore MIPSes without I/D hardware coherency suffered from a race condition in the page fault handler. The page table entry was published before any pending lazy D-cache flush was committed, hence it allowed execution of stale page cache data by other VPEs in the system. To make the cache handling safe we need to perform flushing already in the set_pte_at function. MIPSes without coherent I-caches can get a small increase in flushes due to the unavailability of the execute flag in set_pte_at. [ralf@linux-mips.org: outlining set_pte_at() saves a good k in a test build, so I moved its definition from pgtable.h to cache.c.] Signed-off-by: Lars Persson <larper@axis.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7511/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2014-08-26 02:18:54 +02:00
..
c-octeon.c
c-r3k.c
c-r4k.c	MIPS: c-r4k: Avoid duplicate CPU_74K/CPU_1074K checks	2014-07-30 15:50:52 +02:00
c-tx39.c
cache.c	MIPS: Remove race window in page fault handling	2014-08-26 02:18:54 +02:00
cerr-sb1.c
cex-gen.S
cex-oct.S
cex-sb1.S
dma-default.c
extable.c
fault.c
gup.c
highmem.c
hugetlbpage.c
init.c	MIPS: Initialise MAARs	2014-08-02 00:06:46 +02:00
ioremap.c
Makefile
mmap.c
page-funcs.S
page.c
pgtable-32.c
pgtable-64.c
sc-ip22.c
sc-mips.c
sc-r5k.c
sc-rm7k.c
tlb-funcs.S
tlb-r3k.c	MIPS: Remove incorrect NULL check in local_flush_tlb_page()	2014-07-30 20:59:43 +02:00
tlb-r4k.c	MIPS: mm: Use the Hardware Page Table Walker if the core supports it	2014-08-02 00:06:39 +02:00
tlb-r8k.c
tlbex-fault.S
tlbex.c	Merge branch '3.16-fixes' into mips-for-linux-next	2014-08-02 00:07:03 +02:00
uasm-micromips.c	MIPS: uasm: Add SLT uasm instruction	2014-06-26 10:48:19 +01:00
uasm-mips.c	MIPS: mm: uasm: Fix lh micro-assembler instruction	2014-06-26 10:48:19 +01:00
uasm.c	MIPS: uasm: Add SLT uasm instruction	2014-06-26 10:48:19 +01:00